Lens for vehicle headlights



Feb. 15 {1927} W. A. WILLIAMS LENS Fon VEHICLE HEADLIGHTS Filed sept. 2e, 192.5

INVENTOE ATTOE.

`Patented Feb. 15, 1927.

UNITED STAS WILLIAM A. WILLIAMS, OF BARTON, OI-IIO.

LnNsroR VEHICLE HEADLIerITs.

App1ication led September 26, 1925. Serial No. 58,781.

rIhis invention relates broadly to headlights for motor vehicles, and more specifically to a lens for such headlights. Y

The primary object of this invention is to provide simple and efficient meansfor shielding the upper portion of a headlight reflector from direct rays from the therewith-associated lamp, thereby to prevent the collection in said upper portion of av ball-like bundle of such rays which, reflected forward in a more or less solid beam, as ordinarily, would produce an objectionable dazzling glare.

A further object is to provide a headlight lens which embodiesv as an integral part thereof a shield whereby light rays in objectionable volume are prevented from intercepting the upper portion of the headlight reflector with which the lens is associated.

In describing the invention in detail, reference is herein had to the accompanying drawings, in which- Figure 1 is a central vertical section of a` vehicle headlight embodyingmy invention;

Figure 2 is a rear elevation of the invention; and- 1 Figure 3 isa section on line 3 3, Fig. l.

Referring to said drawings, 1 indicates generally the'casing, and 2 the reflector of a vehicle headlight of a familiar type. Mounted within the front portion ofthe casing in any manner usual to or suitable for headlight lenses is a transparent glass lens 3 of generally flat form. yIntegrally formed on the rear face of said lens in the horizontal diametrical line thereof is a rearwardly-extending plate 4 of substantially flat horizontal form. Said plate, which may either be made of colored glass or otherwise rendered translucent, as by frosting orpby coating with paintl or other appropriate substance, is designed to serve as a shield for preventing light rays from the filament of the lamp 5 from being concentrated inany considerable volume on the upper portion of the reflector, or in Vsuch volume as would be productive of a dazzling glare.

The lens 3 and said shield plate 4: are preferably formed together in a mold, and said plate, which is designed to lie wholly withf in the enclosure constituted by the reflector, has its late-ral edges an' inclined or curved to substantially conform to the curvature of the reflector, having its ends very closely-approaching the walls ofk the latter, as shown. Said plate has its rearmost portion terminating in a line substantially parallel to the lens and located intermediate the position of the lamp filament andthe rearmost portion Aof the reflector. Thus, while the upper partv of the reflector isshielded,

as aforesaid, from the large volume of light rays which vwould otherwise impinge thereon, unobstructed passage of rays 'in such relatively small quantity or volume as serves to illuminate the upper part of' the headlight, preventing the latter from appearing dark, is permitted, as indicated in Fi g. l.

To provide for the accommodation of the lamp 5, the central rear portion of the plate is pressed into theform of a hood 6 which closely overhangs said lamp.

Itr will be noted that the structure described provides simple and effective means for obviating the objectionable glare of automobile headlights, while in no way ob- -which impinge upon the lower half of the reflector. Y

What is claimed is Y The combination with the lamp and the reflector of a vehicle headlight, of a transhorizontal plane ofthe axis of said lens and which has its central rear edge portion arched to form a hood whichilies 1n overhanging` relation-to said lamp, said hood: having Itsrear edge located rearward ofthe vertical plane of the filament of the lamp and at a substantial distance forward Vvof the axial portion of the reflector. Y In testimony whereof, I aflix my signature. l

WILLIAM A. WILLIAMS. 

